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Hi, any chance you could help - Planck Energy = 1.9561 GigaJoules but no matter what I do I keep getting 357 GigaJoules 🤔 6.6267015x10-34 x 5.39121x10-44 = 3.5722157x10-77 joules (if ~ ((x 5.39121x10+44 = 1.9258565x10-32 joules 🤔)) 6.6267015x10-34 x 5.39121x10+44 = 357 GigaJoules 🤔🤔 0.000000000000004135665538536 eV (1 Hertz) x 5.39121x10+44 = 2229639442763560000000000000000 eV~ 357228372240.692 joules (still 357 GJ) I cannot find 1.92GJ that Planck is supposed to be -

thank you so much. this was so confusing. holy cow.

Understandable good night

Hi sir, What is exactly voltage drop and voltage rise

There is also a 5th force. This force is pushing galaxies away from each other. If presence of Mass produces attractive force absence of mass should produce repulsive force. Free space has no mass but it has energy & therefore produce a repulsive force. This is similar to free space ( absence of electric field) between like charges which also produce repulsive force.

Very helpful and clear, thanks.

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While presence of Charge & Mass is necessary to induce respective field , they don't directly generate any force. I think the forces are induced by space around the charges & masses. Space provides a path for fields to interact with each other. Space around charges & masses is different than free space. Space containing fields is 'denser' due to presence of some unknown particles. I think it is the 'density' of space which induces attractive or repulsive force. Free space produces repulsive force. It is this force which is moving the glaxies away from each other. Space b/w closer galaxies is comparatively denser therefore they attract each other. If presence of mass generates attractive force lack of mass should generate a repulsive force. To keep an atom stable certain critical level of density is needed. Space density within atom is also responsible for nuclear decay. Higher density tends to collapse & lower density split the atom.To stabilise, the atom increases or decreases its space density by changing number of protons in its nucleus. Denser space attracts & leaner space repels. Density gives Space a physical structure & changes in its density allows it to change its physical structure. Any object moving through such space has to follow a certain path determined by its density. Assuming free space can generate repulsive force it must have energy if not matter.

The second electron affinity of an electron is always positive or negative ? Please replay

Electron & proton have - & + electric field around them. Does a neutron have an electrically neutral field around it.

As a charged particle freely falls in an oppositely charged inverse square field (after release from a fixed position), does its acceleration (and thus force it experiences) remain constant?

any indian student will be laughing on that calculation. here in india we are taught to do calculations very fats and these level of calculations are done sometimes in mind only. No disrespect to you sir, i love your lectures and i come here from time to time . may be you have opted for a slow calculation based on other foreign audiance

Thank you so much sir 😊 Sending love from india ❤❤

this explanation is vague you don't explain why the inductance works how it works

Huh? This video claims that computer synthesized interferometry can be used for optical as well as radio astronomy. That is not true, or at least not yet true. The problem is that as the frequency of the source of the radiation to be observed, gets higher and higher, meaning the wavelength get shorter and shorter, it is no longer possible at some point, -- currently in the microwave portion of the EM spectrum -- merely to capture the radiation at several locations and then recombine these "samples" electronically in a computer, as is routinely done at radio wavelengths, and as is discussed in the video. It is a bit involved to explain how and why the artificial interference technique comes up against many limits as the wavelengths observed become several octaves shorter than the more tractable radio waves. Suffice it to say here, that most of the limitations are caused by the inability of current technologies to record the data accurately enough and by similar technological limitations of current computer processing. For this reason, when viewing in the optical, or even infrared, regions of the spectrum one is still required actually to physically "recombine"the beams coming from the various sources, and that too is very difficult to do since it requires several mirrors in long tubes all adjusted to within nanometers in length to produce the interference data. Still, the much simpler and more convenient "ärtifical interference" technique described in this video has made great progress already, and should, one hopes, allow astronomers to use the technique, first in the higher microwave, and then in the infrared and optical segments of the EM spectrum. How long that will take is anyone's guess, of course, but certainly much progress toward that end should be made during the next two or three decades.

He explained every thing in an understanding way, when you found the issue then you people fully understand the problem, that's his final motive

do you have videos with that involve dependent sources

I have discovered that Faraday's law of induction is unintentional disinformation. In the case of a static magnetic field, if a circuit linked by the field expands, thereby increasing the flux linking the circuit, Faraday's law states that the changing flux produces an emf in the circuit. This is false; the changing flux linkage has no effect. There is an emf in the circuit of the same value as predicted by Faraday's law. It is motional emf due to the motion of the conductor of the circuit through the magntic field. Thus, Faraday's law is false. There are also exceptions to Faraday's law, as pointed out in The Feynman Lectures on Physics. Faraday's law is just math, not physics. It is a case of correlation, not causation. Faraday's law encompasses the Maxwell-Faraday law, which is one of Maxwell's equations. That part is true. That is why Faraday's law is like disinformation. It is partially true and partially false.

Professor I found out that the sidereal day is relative to the vernal equinox on the meridian . Is the sidereal year also relative to the vernal equinox as well?

Thanks! Would it be possible if this playlist be tidied up for better navigation?

I learned so much in such a short time. Thank you

Concerning the electron fall towards a proton, does its acceleration remain constant, do to the increasing velocity "balancing" out the increasing force?

Love the explanation! Keep it up!

If you please, what is the equation and value, for the time of flight of an electron in the field of the proton, when its at a certain distance (say the Bohr radius). Assume zero is end point for e. Thanks you!

Mr. Professor does the main difference between electric and magnetic field is that only electric field can accelerate charges?

I remember a cut with this to six cables to a voltage current to a area to two magnet stuck to a weight scale with 20g down force to it by the electronic feilds pressed on the magnet cool stuff not as cool watching a n42 neyodium magnet 2x2x0.5 at 2700g with join pole line to over 5000 to super state hopefully 7000g to that same material crazy no 😃😄😁😆😅 5 Smile's real green energy systems like gas turbines that have no gear or torque converter to save with smaller fans to load gear at around 1/3 that total year gas amount????O education.

Excellent lecture; well done ! .... Even your writing is better than mine ! .... You should consider getting more pens; the 25,000 you have, isn't enough 😀

Hi sir, can i just watch these long videos(172) for getting the basic idea of mechanics?

Hold on Mr. Michel, shouldn't there be two extra terms on both sides of the equation; on the gained side, the heat energy that is gained by the water when Aluminum block is splashed into it, and on the lost side, the heat lost by the water when aluminum is plopped into it?

Actually, Mr. Michel, the heat lost by the horse shoe is equal to the heat absorbed by the water; therefore, you must have scribbled down: Qw = - Qh Also, for the horseshoe the change in the temperature is negative not positive, making the specific heat capacity of the horse shoe positive when you divide both if the negative quantities otherwise your result will be negative. I hope you will bring this to your consideration!

You are the best physics tutor i have ever seen

brilliant as always

Great explanation

prof 1:27 really confused me. Why is it that the charges below cancels out with the charges from the top? Isn't there more charge beneath the "top lid" of the cylinder than charge above it? for a given height h and the thickness of the slab r, isn't there r/2 - h "length" of electric field planes above the top lid and r/2 + h "length of electric field planes below it? Afterwards you said that the charges on the bottom doesn't matter because they are pointing downwards but isn't electric field going in all directions and since the top lid of the cylinder is above it the charge beneath also apply an upwards force on it?

😊😊😊

Professor what’s the sidereal hour angle?

are they always hydra at the end

very clear for the people with very little background in math Highly recommended for beginners in particular

Good lecture. But Sir please, the camera is not very clear

I sincerely appreciate your informative video. I am convinced that your lecture was the best in elucidating the derivation of angle of resolution among lots of CZcams videos.

Morning professor, I humbly ask if you can make a vid going into the derivation of these 2 similar laws. Newton's gravitational law & Coulombs law. In particular how Columb [like Newton] 1st came to the mathematical conclusion that the ratio of the charge coupling must be expresses with this multiplication q1 x q2 as a ratio to the force. IMO, it all must've started with some experimental data. I feel that our education is missing some preliminary math lectures on the math of ratios & how to express experimental data in a ratio & then an equation. I know this is the job of a mathematician, but as a physicist I feel you can do a better job. TYSM

Professor. The sidereal day is defined to be the length of time for the vernal equinox to return to your celestial meridian. How is this different from the tropical year? I got this information from a college. Is the sidereal month and year also based on the vernal equinox or just the sidereal day?

HI Michel Is there a mistake for calculating the the change in internal energy that you used the C sub v to the equation of delta U equals to n Cv delta T. Should you use the C sub p to replace the C sub v in the equation to find the change in internal energy because the pressure is kept constant for the lesson? so C sub p is 7/2 instead of 5/2 for the equation. please let me know if you made mistake or I made ? thank you

Thank you sir! You taught me a lot during this series.

Just wondering.... do you have your lectures available in a book form with exercises?

If you don't have Sb = 25.5m, how can you find value for the Sb ? Do you need to take account of the nominal weight of the cable ?

Mr. Professor it is kind of magic 😊(tention and charge combined) - amazing

Finally I understand this concept of the "function of integration"! Thanx!

Thank you!

Thanks Sir posting useful information